Railway signal-torpedo.



IF. DUTCHER.

. RAILWAY SIGNAL TORPEDO.

APPLICATION' FILED OCT. I5. 1918.

1,2%',490. i y mm, Man-4, 1919;

a'sIIEETs-SIIEH I.

ieefifao.

" TED STATES PA FRANK DUTCHER, or VERSAILLES, PENNSYLVANIA, AssiGNoR ToCENTEAE-'RALWAY 'SIGNAL coMPANY, 0E PITTSEURGE; PENNSYLVANIA, .iccitroniiii'roN-or`v i.

JERSEY.

. ,To all whom t mcy-concern:

Be it known that LvFRA'Nir DUTCHER, a

"c'tizen `of the United' States, residing at ersailles, iinthe countyLief- Allegheny and State of Pennsylvania, haveginventedfcertain neitranduseful Improvements in Rail.- way SignalvTorpedoes, of which thefollowing isa specification, yreference' being had therein totheaccompanying drawing'.A

This invention relates to improvements in railway signal torpedoes, andis of the paper or fibrous case type of torpedo in which the inclosing`case, is of a cup-'shaped form.

The type of torpedo upon which my present invention is an improvement,has the edgeof the side peripheral -Wall of the cupsha'ped inclosingcasecrimped inward to lookithe case containing member Within-the outercase, the crimped .in portionA being 20.

substantially parallelvvitli the4 side Wall of Athe cup-shaped member.

In order" to. makelthis type ofA torpedo vWater-proof, the', criinpe'dedge is forced tightly againstthe eirplosive retaining member, and itisessential that the crimp should remain in' its Atight'compressedposition. The crimp of lp aperused in'torpedoes does not.have very milchA body, and it' `has l a tendency to loosen up in thepresence' of moisture, due to the weatherexposure to which suchtorpedoes are necessarily sub- Ijecte'd.

One object of my-invention is` to soconstructl and arrange'theparts ofthis type of torpedo, that the crimpedin edge of the inclosing-case islocked against any loosenying upf under the.inf1uence of moisture orotherwi se,'so that a tight clamping action is always insured.

Another object of my present invention is to have the member for lockingthe crimped portion performthe .additional function offastening therail-embracing 'strap to the torpedo for holding it on the tread of therailroad rail.

Another object 'of my present invention .is to have'the outer holdingWall for the explosive tablet, consistjbf a disk which is locked inposition by the crimpedJin edge of the inclosi-ng case. 1 l 'Anotherobjectv of my inventionpertains .to the detailed arrangementandconstruction of the Vseveral parts, .c0mprising""`the ease for holdingthe explosivejtahlet,,which Y Specification of Letters Patent.

- View of Fig. l.

' RAILWAY SIGNAL-TORPEDO.

will be pointed out scription thereof. il l ,1

In the accompanyingdrawings vFigure 1 is atop perspective viewfyaf :itorpedo embodying .my inventioniffshoivingf it held ontop of a railroadrail;

Fig. 2 is a. vertical `transverse.iseeti nal.

Fig. 3 is a vertical central transverse sec.-k

tional View of my imp'rovedjtorpedo,.shovv-y ing a/slight modificationin-.the construction of the combined i crimped locking member and holder,for the railengaging strap.. .if-

Fig. 4 is a vertical central sectional View of thev partsl comprisingtheto'rpedm.l they being shoivn in separated.-relatiomrand therail-engagingstrapomitted.: f

I `ig. 5 is a plan view ofthe combined crimp locking -and strap-carrying`member',

shovvn 'in-Figs. 1, 2 and 4:. y Fig 6 is a Aplanview of the' combinedcrimplocking and strap carrying meinber shown in Fig. 3.

Eg. 7 is' a iop lpian viewers ireoifi:

volving the broad principles' of theinvention., but showing amodiication thereof.l

Fig. V8 is a vertical centraltransverse sectional vieiv of Fig. 7.

Fig. 9 is a .central vertical"sectionallvievv of the modifiedconstruction, k"showing the parts in .separ'ated relation "l .Referringnow'to Figs; 1,- 2, 4- andl, 1

in which a second cup-shapedfibrous mem ber 2 is placed, arrangedWith'itsopen; face corresponding to the openface of the'f-i'nem: ber l.'l'Pla'ced Within explosive tablet 3.

the member-2 fis an .is a cup-shaped paper` or'fliloroiis'l member 'Thecup-shaped member'lfis an 'outer or i inclosing cup-shaped 'case',-"andthe-.member 2 is an inner explosive carrying cup-shaped case, Which ismuch shallower than the cupshaped. member 1. the inner case 2 is placedWithinthe'I-outer easel, as shown in Figs. 1, 2 and 3,."theside lWa-llor iange 4 projects considerably beyond the vside Wall orliange; 5" 'ofthef'i'nner That is" to say, When cup-shaped case 2. Asshown,theexplsive tablet 3 is of a thickness'"c'orespondingcto the innerdepth of the innerjfcase-2."1"" paper disk 6 fits snuglywithin'fth'@outer case 1, and rests upon l theredgef -voffjthe inner case 2,I andupontlie explosive, las"'" shown. When the partsl are in this p0sition,the edge of the outer case flange 4. is crimped inward in a positionsubstantially paiallel to the wall of the flange si, as shown at 7, andis crimped tightly against the disk 6, for locking it tightly againstthe edge of the flange 5 of the inner case 2. Preferably, the explosivetablet 3 is a trifle thinner than the width of the flange 5, so

that the disk 6 will be locked tightly against1 the flange 5, by thecrimped portion 7. IVitli the flange of the inner case projectingdownward, as shown, the inner extending portion of the U-shaped crimp '7is substantially in line with the edge of the flange 5 of the. innercase, which is one of the iniproved arrangements of part-s involved inmy present construction.

` Another feature of my present'im'provenient is the provision of meansfor locking `the Ueshaped crimp 7 .in its tightly clamped position', toprevent any loosening up or releasing of the clamping action. Thisimprovenient consists in providing an outer disk 8, wliichvis'placedagainst the inner disk (land cemented thereto, and is of a diameter totightly fit against -the inner wall of the crimped portion 7 thusholding or locking the crimped portion in its tightly crimped positionand preventing it from loosening or releasingunder the action of themoisture or otherwise. In fact, t-lie diameter of the locking disk '8 ispreferablysuch as to force the inner wall of the crimped portion 7outward, so that if the crimped in portion has any tendency to loosenafter being crimped,

it is forced to its tight .clamping or crimping action by the lockingdisk 8.

'T his locking disk lS is alsoV utilized to `secure the rail clampingstrap 9 to the torpedo. In theform shown iiiFigs.-1, 2, I and 5, the.

locking disk 8 is provided with slots 10,.'

through which the rail strap 9 is' threaded.

In Fig. 3, I show a modification in the construction of the lockingmember 9, in that, a locking inem-ber 9a of disk form is pro` vided, andthis locking member is provided at opposite edges with notches 11,through which the rail engaging strap 9 is threaded, asshown in Fig. 3.,The' locking disk 9 is made of a diameter to act upon the U-s'hapedcrimp 7 in the same manner as the locking disk 8 and-is cemented to theinner explosive holding disk 6, the saine as in Figs. 'l and 2.

In Figs. 7, 8 and 9, I show a modification in that the inner case 2 isomit-ted. In 7this modified form the outer case 1a hasj its` flange 5awith its -edge 7a 'crimped inward,

'as -in the forni shown' in Figs. 2 and l3, against an explosiveretaining disk 6, which fits snugly -within the inclosing case la. Inthis -construction I utilize y my -improved the crimped portion exactlyas in Figs. 2 and 3, and has the rail-engaging strap 9a lthreadedthrough it as in Fig. 2, though it will be understood that the lockingdisk form shown in Fig. 6 may be used as Well and substituted therefor.l

Attention is directed to the fact that the locking disk in these severalforms ismade of a ,thi kii'ess approximately equal to t-lie depth ofi'the crimp of the outer case, for the after the u"torpedo is completed,dipping it into a suitable water-proofing compound, which will beabsorbed. by the paper. but this forms no part; of my present invention.

Having thus described my invention, what I claim and desire to secure byLetters Patent is'- l. A n improved railway signal torpedo, comprisingan outer inverted case, an explosive therein, a disk within the case,the side f wall of the case, projecting beyond the disk and crimpedinwardly' tightly against it forming a recess at the'bottom of the case.and a locking disk fitting within the recess and holding the crimpedportion against loosening. i

:2. An improved railway signal torpedo,

comprising aiiexplosive containing case,` an

explosive therein, 'a disk within Vthecase outside ozt the explosive,the flange of the case 'projecting beyond .the diskfand crimped in` wardtightly against itl foi'niing a 'recess at the bottoni of the case, anda locking disk outside of the first said'disk and cemented thereto andhaving its periphery engaging and locking the crimped portion of thecase in its tightly crimped position,

3. An improved railway signal torpedo, comprising an explosive holdingcase. an explosive therein, a 4holding member lwithin the case andoutside of' the explosive. the

flange of ythe case projecting beyond the holding member and clampedtightly inward against. the holding member thus forming a recess attliebottom of the case. a locking disk out-side of' the holding memberand having its periphery engaging the crimped portion of the case. forthe purpose dcscribed, and means holding the locking disk in position..Y

4. An improved railway signal torpedo, comprising a cup-shaped case, ashallower cup-shaped case within the first said case` an explosive`Within the inner case, a disk Withiis in the first said case, andengaging the edge l?

